GRAND RAPIDS -- Ricardo Fonseca, the 16-year-old boy shot in the head Tuesday while on his porch, is expected to survive, but with a life-altering brain injury.

Fonseca was in a coma at Saint Mary's Health Care, breathing with the help of a ventilator, authorities said.

"His life is going to be very much different than before," Grand Rapids Police Sgt. Chris Postma said.

Fonseca was on his family's porch in the 600 block of Stolpe Avenue SW when a car passed by and multiple shots were fired from the passenger side.

Police are investigating whether Fonseca may have been a revenge target because of a fight he had with another person about two weeks ago.

Tuesday's 8 p.m. shooting was followed by a Wednesday afternoon shooting in the 2100 block of Darwin Avenue SW, near Burton Street and Buchanan Avenue SW. Shots were fired into a house, but no one was injured.

Police were trying to determine if the two incidents were related, but Postma said there is "nothing glaring" to link the two.